Atlas crashes with coastal waves enabled

[historic_bruno]

Since r13374:

 	ntdll.dll!_ZwRaiseException@12()  + 0x12 bytes	
 	ntdll.dll!_ZwRaiseException@12()  + 0x12 bytes	
 	atioglxx.dll!575241b5() 	
 	[Frames below may be incorrect and/or missing, no symbols loaded for atioglxx.dll]	
 	atioglxx.dll!5752eb2c() 	
>	atioglxx.dll!570a4586() 	
 	pyrogenesis.exe!CShaderProgramGLSL::Uniform(CShaderProgram::Binding id, float v0, float v1, float v2, float v3)  Line 581	C++
 	pyrogenesis.exe!CShaderProgram::Uniform(const char * id, float v)  Line 750 + 0x3b bytes	C++
 	pyrogenesis.exe!TerrainRenderer::RenderFancyWater(const CShaderDefines & context, ShadowMap * shadow)  Line 788	C++
 	pyrogenesis.exe!TerrainRenderer::RenderWater(const CShaderDefines & context, ShadowMap * shadow)  Line 998 + 0xf bytes	C++
 	pyrogenesis.exe!CRenderer::RenderSubmissions()  Line 1553	C++
 	pyrogenesis.exe!CRenderer::RenderScene(Scene & scene)  Line 1782	C++
 	pyrogenesis.exe!CGameView::Render()  Line 503 + 0x3a bytes	C++
 	pyrogenesis.exe!Render()  Line 222	C++
 	pyrogenesis.exe!AtlasViewGame::Render()  Line 258	C++
 	pyrogenesis.exe!RunEngine(void * data)  Line 229	C++
 	pyrogenesis.exe!thread_start(void * param)  Line 624 + 0x3 bytes	C++
 	msvcr100.dll!__endthreadex()  + 0x3a bytes	
 	msvcr100.dll!__endthreadex()  + 0xe4 bytes	
 	kernel32.dll!@BaseThreadInitThunk@12()  + 0x12 bytes	
 	ntdll.dll!___RtlUserThreadStart@8()  + 0x27 bytes	
 	ntdll.dll!__RtlUserThreadStart@8()  + 0x1b bytes	

[wraitii]

In 13386:

Make sure to actually prevent Atlas from trying to render coastal waves. Fixes #1925